Microsoft Security Response Center

**According to the CVSS metric, the attack complexity is high (AC:H). What does that mean for this vulnerability?** Successful exploitation of this vulnerability requires an attacker to win a race condition.

**According to the CVSS metric, the attack vector is local (AV:L). Why does the CVE title indicate that this is a remote code execution?** The word **Remote** in the title refers to the location of the attacker. This type of exploit is sometimes referred to as Arbitrary Code Execution (ACE). The attack itself is carried out locally. For example, when the score indicates that the **Attack Vector** is **Local** and **User Interaction** is **Required**, this could describe an exploit in which an attacker, through social engineering, convinces a victim to download and open a specially crafted file from a website which leads to a local attack on their computer.

**How could an attacker exploit this vulnerability?** An attacker could exploit the vulnerability by convincing a user to connect a Lightweight Directory Access Protocol (LDAP) client to a malicious LDAP server. When the vulnerability is successfully exploited this could allow the malicious server to gain remote code execution within the LDAP client.

**According to the CVSS metric, privileges required is low (PR:L). What does that mean for this vulnerability?** The attacker must be authenticated and possess the permissions for page creation to be able to exploit this vulnerability.

**According to the CVSS metric, privileges required is low (PR:L). What does that mean for this vulnerability?** The attacker must be authenticated and possess the permissions for page creation to be able to exploit this vulnerability.

**What type of information could be disclosed by this vulnerability?** The type of information that could be disclosed if an attacker successfully exploited this vulnerability is memory layout - the vulnerability allows an attacker to collect information that facilitates predicting addressing of the memory.

**What type of information could be disclosed by this vulnerability?** The type of information that could be disclosed if an attacker successfully exploited this vulnerability is device information like resource ids, sas tokens, user properties, and other sensitive information.

**What type of information could be disclosed by this vulnerability?** The type of information that could be disclosed if an attacker successfully exploited this vulnerability is the contents of Kernel memory. An attacker could read the contents of Kernel memory from a user mode process.

**What type of information could be disclosed by this vulnerability?** The type of information that could be disclosed if an attacker successfully exploited this vulnerability is uninitialized memory.

Mitigation refers to a setting, common configuration, or general best-practice, existing in a default state, that could reduce the severity of exploitation of a vulnerability. The following mitigating factors might be helpful in your situation: This vulnerability is not exploitable in NFSV2.0 or NFSV3.0. Prior to updating your version of Windows that protects against this vulnerability, you can mitigate an attack by disabling NFSV4.1. This could adversely affect your ecosystem and should only be used as a temporary mitigation. **Warning** You should NOT apply this mitigation unless you have installed the May 2022 Windows security updates. Those updates address CVE-2022-26937 which is a Critical vulnerability in NFSV2.0 and NFSV3.0. The following PowerShell command will disable those versions: PS C:\Set-NfsServerConfiguration -EnableNFSV4 $false After running the command, you will need to restart NFS server or reboot the machine. To restart NFS server, start a **cmd** window with...